Browse Definitions :
Definition

scalable font

A scalable font is a type font that can be resized (enlarged or reduced)without introducing distortion. The outline of each character is stored as amathematical formula. The set of all such formulas for a complete set of charactersis called an outline font. The outline font remains essentially the same regardless of the size of the characters. This eliminates the necessity for storing a gigantic set of characters to encompass all the possible sizes for a particular font.

Once the size of the characters has been selected (for example, 12-point), the outlines are filled in with a bitmap for each character.Usually (but not always), the same bitmap is used for all the characters in thefont. The bitmap can itself have mathematical formulas incorporated into it. For example, the characters might be italicized and shaded solid blue; rendered as normal and solid black; or a special typeface mightbe used with shading from blue at the top to red at the bottom.

scalable_font.gif (2649 bytes)

Some outline-font characters are shown at the top of the illustration. The same characters, filled in with various bitmaps, are shown at the bottom. They have been scaled to different sizes. The mathematical formulas for the bitmaps, as well as for the outline fonts, are pre-determined. So, for example, if the numerals 1 2 3 at lower right were enlarged or reduced, the outline-font formulas could simply be multiplied by a constant. In all other respects, the appearance of the characters would remain the same.

This was last updated in September 2005

SearchCompliance

SearchSecurity

  • cyber attack

    A cyber attack is any attempt to gain unauthorized access to a computer, computing system or computer network with the intent to ...

  • backdoor (computing)

    A backdoor is a means to access a computer system or encrypted data that bypasses the system's customary security mechanisms.

  • post-quantum cryptography

    Post-quantum cryptography, also called quantum encryption, is the development of cryptographic systems for classical computers ...

SearchHealthIT

SearchDisasterRecovery

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • call tree

    A call tree is a layered hierarchical communication model that is used to notify specific individuals of an event and coordinate ...

  • Disaster Recovery as a Service (DRaaS)

    Disaster recovery as a service (DRaaS) is the replication and hosting of physical or virtual servers by a third party to provide ...

SearchStorage

  • cloud SLA (cloud service-level agreement)

    A cloud SLA (cloud service-level agreement) is an agreement between a cloud service provider and a customer that ensures a ...

  • NOR flash memory

    NOR flash memory is one of two types of non-volatile storage technologies.

  • RAM (Random Access Memory)

    RAM (Random Access Memory) is the hardware in a computing device where the operating system (OS), application programs and data ...

Close